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MD 0467 CONCERNING SEVERE THUNDERSTORM WATCH 119... FOR PARTS OF NORTHEAST AND EAST CENTRAL MISSOURI
Mesoscale Discussion 0467 NWS Storm Prediction Center Norman OK 0623 PM CDT Tue Apr 16 2024 Areas affected...Parts of northeast and east central Missouri Concerning...Severe Thunderstorm Watch 119... Valid 162323Z - 170130Z The severe weather threat for Severe Thunderstorm Watch 119 continues. SUMMARY...The risk for widely scattered additional strong to severe thunderstorm development near/east of Columbia and Jefferson City into areas northwest of St. Louis may still not be negligible. However, it appears to be lowering and likely to diminish further with the loss of daytime heating. If current trends continue, the watch may be cancelled within the next hour or so. DISCUSSION...In the wake of an initial band of weakening convection which has spread east of the Mississippi River, a moistening low-level environment has contributed to a corridor of increasing potential instability across much of northeastern into east central and south central Missouri. This is ahead of a remnant dryline advancing across/east of the Kirksville, Columbia and Springfield vicinities. Renewed discrete thunderstorm development is ongoing as far south as areas to the southeast of Kirksville, with additional deepening convection noted near/west of Columbia and Jefferson City. Some convection allowing guidance, including the High Resolution Rapid Refresh suggest further intensification of the southern convective development might still be possible, before spreading near/to the northwest of the Greater St. Louis area through 00-02Z. Based on the Rapid Refresh forecast track of a weakening 500 mb jet core, and associated mid-level subsidence/warming, this would seem be the southern/southeastern limit for stronger convective development. However, based on latest water vapor imagery, the potential for new storms south of the Hannibal/Quincy area is becoming low. ..Kerr.. 04/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ILX...LSX... LAT...LON 39749206 40139168 40019060 39389045 38759092 38429160 38519240 39079239 39749206 Read more

MD 0466 CONCERNING TORNADO WATCH 117...118... FOR PORTIONS OF NORTH-CENTRAL IOW AND SOUTHERN MINNESOTA.
Mesoscale Discussion 0466 NWS Storm Prediction Center Norman OK 0612 PM CDT Tue Apr 16 2024 Areas affected...portions of north-central iow and southern Minnesota. Concerning...Tornado Watch 117...118... Valid 162312Z - 170015Z The severe weather threat for Tornado Watch 117, 118 continues. SUMMARY...The severe risk over tornado Watch 118 may continue for another 1-2 hours. Some redevelopment along the dryline is possible with a risk for an isolated tornado and hail. DISCUSSION...Ongoing storms over eastern IA have pushed east of the dryline allowing for clearing over parts of north-central IA and far southern MN. Some air mass recovery is possible in the next 1-2 hours with strong mid-level ascent overspreading the area. Upper 50s to low 60s F surface dewpoints are supporting 500-1000 J/kg of MUCAPE with strong mid and low-level shear profiles in place. Renewed development has recently taken place near the IA/MN border suggesting some redevelopment is possible. The main threats would be an isolated tornado or hail with any storms able to become established. Confidence is not high given the degree of convective overturning that has taken place. However, the severe risk may continue for another hour or two. ..Lyons.. 04/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DVN...ARX...MPX...DMX...FSD... LAT...LON 43789405 43669258 43399215 43049192 42639186 41959210 41699236 41539273 41669298 42039315 42469348 43049415 43389534 43559548 43709531 43789475 43789405 Read more

WW 0120 Status Updates
STATUS REPORT ON WW 120 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..04/16/24 ATTN...WFO...LOT...MKX... STATUS REPORT FOR WT 120 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC007-037-099-103-141-201-170040- IL . ILLINOIS COUNTIES INCLUDED ARE BOONE DE KALB LA SALLE LEE OGLE WINNEBAGO WIC025-045-049-065-105-170040- WI . WISCONSIN COUNTIES INCLUDED ARE DANE GREEN IOWA LAFAYETTE ROCK THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 120 TORNADO IL WI 162250Z - 170300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 120 NWS Storm Prediction Center Norman OK 550 PM CDT Tue Apr 16 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Northern Illinois Southern Wisconsin * Effective this Tuesday afternoon and evening from 550 PM until 1000 PM CDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Scattered storm clusters and a couple of supercells will be possible this evening into north central Illinois and south central Wisconsin near a surface warm front. A couple of tornadoes, damaging gusts of 60-70 mph and large hail of 1-1.5 inches in diameter will all be possible through late evening. The tornado watch area is approximately along and 25 statute miles east and west of a line from 25 miles north of Janesville WI to 65 miles south southwest of Rockford IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 116...WW 117...WW 118...WW 119... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 23035. ...Thompson Read more

WW 0117 Status Updates
STATUS REPORT ON WW 117 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 WNW COU TO 25 SE IRK TO 25 ENE IRK TO 25 E OTM TO 30 SSW CID TO 35 S ALO TO 30 WSW ALO TO 30 ESE SPW. ..LYONS..04/16/24 ATTN...WFO...DVN...ARX...LSX...ILX... STATUS REPORT FOR WT 117 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC001-009-011-015-017-057-067-071-073-085-095-109-123-125-131- 137-143-149-155-161-169-171-175-177-187-195-170040- IL . ILLINOIS COUNTIES INCLUDED ARE ADAMS BROWN BUREAU CARROLL CASS FULTON HANCOCK HENDERSON HENRY JO DAVIESS KNOX MCDONOUGH MARSHALL MASON MERCER MORGAN PEORIA PIKE PUTNAM ROCK ISLAND SCHUYLER SCOTT STARK STEPHENSON WARREN WHITESIDE IAC019-031-037-043-045-055-057-061-065-067-087-097-103-105-111- 113-115-139-163-183-170040- IA . IOWA COUNTIES INCLUDED ARE BUCHANAN CEDAR CHICKASAW Read more

WW 117 TORNADO IA IL MO WI 161705Z - 170100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 117 NWS Storm Prediction Center Norman OK 1205 PM CDT Tue Apr 16 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Eastern Iowa Western and Northwest Illinois Northeast Missouri Southwest Wisconsin * Effective this Tuesday afternoon and evening from 1205 PM until 800 PM CDT. * Primary threats include... A few tornadoes likely with a couple intense tornadoes possible Scattered damaging wind gusts to 70 mph likely Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Arcing bands and clusters of severe storms including supercells will steadily move northeastward across the region through the afternoon, with the potential for all hazards including tornadoes, a couple of which could be strong. The tornado watch area is approximately along and 60 statute miles east and west of a line from 40 miles north of Dubuque IA to 75 miles south southwest of Quincy IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 116... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 23040. ...Guyer Read more

WW 0119 Status Updates
STATUS REPORT ON WW 119 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 WSW MVN TO 30 ENE VIH. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 467. ..KERR..04/16/24 ATTN...WFO...LSX...ILX... STATUS REPORT FOR WS 119 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC005-013-021-025-027-049-051-061-083-117-119-121-129-133-135- 163-167-173-189-170040- IL . ILLINOIS COUNTIES INCLUDED ARE BOND CALHOUN CHRISTIAN CLAY CLINTON EFFINGHAM FAYETTE GREENE JERSEY MACOUPIN MADISON MARION MENARD MONROE MONTGOMERY ST. CLAIR SANGAMON SHELBY WASHINGTON MOC071-099-113-183-189-219-510-170040- MO . MISSOURI COUNTIES INCLUDED ARE FRANKLIN JEFFERSON LINCOLN ST. CHARLES ST. LOUIS WARREN Read more

WW 119 SEVERE TSTM IL MO 162020Z - 170200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 119 NWS Storm Prediction Center Norman OK 320 PM CDT Tue Apr 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern Illinois Southeast Missouri * Effective this Tuesday afternoon and evening from 320 PM until 900 PM CDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Strong to severe storms will continue to move east-northeastward across the region this afternoon, with damaging winds and hail as the primary risks. The severe thunderstorm watch area is approximately along and 55 statute miles east and west of a line from 45 miles west northwest of Mattoon IL to 40 miles southwest of Farmington MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 116...WW 117...WW 118... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24035. ...Guyer Read more

MD 0465 CONCERNING TORNADO WATCH 117... FOR PORTIONS OF EASTERN/SOUTHEASTERN IOWA INTO NORTHWESTERN ILLINOIS
Mesoscale Discussion 0465 NWS Storm Prediction Center Norman OK 0447 PM CDT Tue Apr 16 2024 Areas affected...portions of eastern/southeastern Iowa into northwestern Illinois Concerning...Tornado Watch 117... Valid 162147Z - 162315Z The severe weather threat for Tornado Watch 117 continues. SUMMARY...The ongoing convective line has evolved into semi-discrete supercells which will allow for an increase in the risk for all hazards over the next couple of hours. A favorable shear/thermodynamic environment may also support a strong (EF-2+) tornado. DISCUSSION...As of 2140 UTC, regional radar and satellite data showed the ongoing convective line in southeastern IA has trended towards more semi-discrete elements, especially with southward extent, over the last hour. The broader environment remains favorable for severe storms with moderate buoyancy and strong deep-layer shear established. Low-level shear has also increased ahead of the storms with backed surface flow supporting 300-400 m2/s2 of effective SRH observed from area VADs and SPC mesoanalysis. With a more supercellular mode emerging, the potential for stronger mesocyclones within a strong low-level shear environment suggests an increasing potential for tornadoes, in addition to the continued risk for damaging winds and hail. STP values of 2-3 along with 0-3km CAPE of 50-100 J/kg favor strong low-level stretching of vertical vorticity. Large low-level hodogaphs may also support the risk for a strong (EF-2+) tornado with the longer lived supercells. This increasing risk may extended near the Quad Cities and farther east into parts of northwestern IL over the next couple of hours. ..Lyons.. 04/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ILX...LSX...DVN... LAT...LON 40139192 40529199 41239180 41809172 42069158 42239133 42469092 42449068 42489007 42298974 41508988 40649056 40219150 40139192 Read more

WW 0117 Status Updates
STATUS REPORT ON WW 117 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 ENE SZL TO 10 SW IRK TO 15 S OXV TO 30 N DSM. ..LYONS..04/16/24 ATTN...WFO...DVN...ARX...LSX...ILX... STATUS REPORT FOR WT 117 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC001-009-011-015-017-057-067-071-073-085-095-109-123-125-131- 137-143-149-155-161-169-171-175-187-195-162340- IL . ILLINOIS COUNTIES INCLUDED ARE ADAMS BROWN BUREAU CARROLL CASS FULTON HANCOCK HENDERSON HENRY JO DAVIESS KNOX MCDONOUGH MARSHALL MASON MERCER MORGAN PEORIA PIKE PUTNAM ROCK ISLAND SCHUYLER SCOTT STARK WARREN WHITESIDE IAC011-019-031-037-043-045-055-057-061-065-067-087-095-097-101- 103-105-107-111-113-115-139-163-177-183-162340- IA . IOWA COUNTIES INCLUDED ARE BENTON BUCHANAN CEDAR CHICKASAW CLAYTON CLINTON Read more

WW 0118 Status Updates
STATUS REPORT ON WW 118 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE DSM TO 30 SE FOD TO 10 NE FOD TO 20 ESE SPW TO 15 WNW SPW TO 20 E FSD. ..LYONS..04/16/24 ATTN...WFO...DMX...FSD...OAX... STATUS REPORT FOR WT 118 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC059-063-081-091-109-147-189-195-162340- IA . IOWA COUNTIES INCLUDED ARE DICKINSON EMMET HANCOCK HUMBOLDT KOSSUTH PALO ALTO WINNEBAGO WORTH THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0118 Status Updates
STATUS REPORT ON WW 118 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE DSM TO 30 SE FOD TO 10 NE FOD TO 20 ESE SPW TO 15 WNW SPW TO 20 E FSD. ..LYONS..04/16/24 ATTN...WFO...DMX...FSD...OAX... STATUS REPORT FOR WT 118 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC059-063-081-091-109-147-189-195-162340- IA . IOWA COUNTIES INCLUDED ARE DICKINSON EMMET HANCOCK HUMBOLDT KOSSUTH PALO ALTO WINNEBAGO WORTH THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 118 TORNADO IA NE SD 161725Z - 170000Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 118 NWS Storm Prediction Center Norman OK 1225 PM CDT Tue Apr 16 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western and Northern Iowa Northeast Nebraska Southeast South Dakota * Effective this Tuesday afternoon and evening from 1225 PM until 700 PM CDT. * Primary threats include... A couple tornadoes possible Scattered large hail events to 1.5 inches in diameter possible Isolated damaging wind gusts to 60 mph possible SUMMARY...A tornado/hail risk will exist through the afternoon as far west as northeast Nebraska and southeast South Dakota near a surface low, with other severe storms expected to develop into additional parts of Iowa. The tornado watch area is approximately along and 65 statute miles north and south of a line from 30 miles north of Norfolk NE to 35 miles east of Fort Dodge IA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 116...WW 117... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 22035. ...Guyer Read more

WW 0119 Status Updates
STATUS REPORT ON WW 119 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 WSW MVN TO 25 ENE VIH. ..KERR..04/16/24 ATTN...WFO...LSX...ILX... STATUS REPORT FOR WS 119 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC005-013-021-025-027-049-051-061-083-117-119-121-129-133-135- 163-167-173-189-162340- IL . ILLINOIS COUNTIES INCLUDED ARE BOND CALHOUN CHRISTIAN CLAY CLINTON EFFINGHAM FAYETTE GREENE JERSEY MACOUPIN MADISON MARION MENARD MONROE MONTGOMERY ST. CLAIR SANGAMON SHELBY WASHINGTON MOC071-099-113-183-189-219-510-162340- MO . MISSOURI COUNTIES INCLUDED ARE FRANKLIN JEFFERSON LINCOLN ST. CHARLES ST. LOUIS WARREN Read more

MD 0464 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PORTIONS OF NORTHERN/CENTRAL IL
Mesoscale Discussion 0464 NWS Storm Prediction Center Norman OK 0340 PM CDT Tue Apr 16 2024 Areas affected...portions of northern/central IL Concerning...Severe potential...Watch possible Valid 162040Z - 162215Z Probability of Watch Issuance...40 percent SUMMARY...Severe potential may slowly increase over the next few hours into parts of northern and central Illinois. A watch may be needed at some point late this afternoon, but timing remains uncertain. DISCUSSION...A band of storms continues to lift northeast across eastern IA into western IL this afternoon. Much of the convection is somewhat disorganized in a messy storm mode. Downstream into northern/central IL, some modest increase in boundary-layer moisture still may occur as a warm front lifts north. While strong heating has occurred, some weak inhibition remains over parts of the area. Nevertheless, modest boundary-layer moisture beneath midlevel lapse rates around 7 C/km are supporting weak instability (MLCAPE 1000 J/kg or less). The initial band of convection moving toward the MCD area may largely remain unproductive. However, as large-scale ascent increasing toward evening, a secondary band of convection may move into the area and post more of a severe risk. Given the somewhat limited thermodynamic environment (despite favorable vertical shear), severe potential may only gradually increase toward evening. The area will be monitored for potential watch issuance, but timing is uncertain. ..Leitman/Guyer.. 04/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LOT...ILX...MKX...DVN... LAT...LON 42588989 42398864 41868769 41098752 40288757 39768819 39688902 40068964 41318962 42588989 Read more

MD 0462 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR CENTRAL AND EASTERN ARKANSAS
Mesoscale Discussion 0462 NWS Storm Prediction Center Norman OK 0316 PM CDT Tue Apr 16 2024 Areas affected...central and eastern Arkansas Concerning...Severe potential...Watch unlikely Valid 162016Z - 162145Z Probability of Watch Issuance...20 percent SUMMARY...Isolated large hail is possible this afternoon/evening. DISCUSSION...A plume of rich low-level moisture has advected across eastern Texas, Louisiana and into southern Arkansas. Weak isentropic ascent has been sufficient for storm development on the leading edge of this moist plume. Effective shear of 50 to 55 knots and will be proficient for organized storms, including supercells. However, warm mid-level temperatures and weak ascent will be the primary limiting factor to a greater threat. Therefore, a few stronger storms may develop with a threat for large hail, but this threat is expected to remain too isolated to warrant a watch. ..Bentley/Guyer.. 04/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MEG...JAN...LZK...SHV... LAT...LON 33229391 33729381 34459361 35109322 35589276 36179209 36469071 36329008 35878979 34549040 33619121 33179180 32969233 32909373 33229391 Read more

WW 0119 Status Updates
STATUS REPORT ON WW 119 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..KERR..04/16/24 ATTN...WFO...LSX...ILX... STATUS REPORT FOR WS 119 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC005-013-021-025-027-049-051-061-083-117-119-121-129-133-135- 157-163-167-173-189-162240- IL . ILLINOIS COUNTIES INCLUDED ARE BOND CALHOUN CHRISTIAN CLAY CLINTON EFFINGHAM FAYETTE GREENE JERSEY MACOUPIN MADISON MARION MENARD MONROE MONTGOMERY RANDOLPH ST. CLAIR SANGAMON SHELBY WASHINGTON MOC055-071-093-099-113-123-179-183-186-187-189-219-221-510- 162240- MO . MISSOURI COUNTIES INCLUDED ARE CRAWFORD FRANKLIN IRON JEFFERSON LINCOLN MADISON REYNOLDS ST. CHARLES STE. GENEVIEVE ST. FRANCOIS ST. LOUIS WARREN WASHINGTON Read more

WW 0118 Status Updates
STATUS REPORT ON WW 118 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W DSM TO 40 NW DSM TO 20 WSW FOD TO 35 WSW SPW TO 10 WNW FSD. ..BENTLEY..04/16/24 ATTN...WFO...DMX...FSD...OAX... STATUS REPORT FOR WT 118 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC021-041-059-063-081-091-109-119-141-143-147-151-167-187-189- 195-162140- IA . IOWA COUNTIES INCLUDED ARE BUENA VISTA CLAY DICKINSON EMMET HANCOCK HUMBOLDT KOSSUTH LYON O'BRIEN OSCEOLA PALO ALTO POCAHONTAS SIOUX WEBSTER WINNEBAGO WORTH THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

MD 0463 CONCERNING TORNADO WATCH 118... FOR NORTHERN IOWA
Mesoscale Discussion 0463 NWS Storm Prediction Center Norman OK 0336 PM CDT Tue Apr 16 2024 Areas affected...Northern Iowa Concerning...Tornado Watch 118... Valid 162036Z - 162130Z The severe weather threat for Tornado Watch 118 continues. SUMMARY...The tornado threat within watch 118 is now confined to northern Iowa. DISCUSSION...As the Pacific front interacted with convection across eastern Nebraska around 19Z, a strong outflow boundary pushed well ahead of convection which has essentially ended the severe weather threat for the western half of watch 118. In addition, this outflow boundary has recently collided with the warm front near the intersection of MN/IA/SD and thus, expect the storm which moved north of the boundary to continue to weaken. Therefore, the only remaining favorable airmass is northeast of the dryline across north-central Iowa. In this region, a few tornadoes have been confirmed with the low-topped supercell in Pocahontas county at 2030Z. Visible satellite and radar trends show additional storms developing southeast of this storm which may also pose a tornado threat this afternoon and into the early evening as they move north. ..Bentley.. 04/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MPX...DMX...FSD...OAX... LAT...LON 41609365 41729530 41839642 42379699 43279660 43529626 43559523 43429408 42869354 42369339 42089329 41649317 41609365 Read more

WW 0118 Status Updates
STATUS REPORT ON WW 118 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W DSM TO 40 NW DSM TO 20 WSW FOD TO 35 WSW SPW TO 10 WNW FSD. ..BENTLEY..04/16/24 ATTN...WFO...DMX...FSD...OAX... STATUS REPORT FOR WT 118 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC021-041-059-063-081-091-109-119-141-143-147-151-167-187-189- 195-162140- IA . IOWA COUNTIES INCLUDED ARE BUENA VISTA CLAY DICKINSON EMMET HANCOCK HUMBOLDT KOSSUTH LYON O'BRIEN OSCEOLA PALO ALTO POCAHONTAS SIOUX WEBSTER WINNEBAGO WORTH THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more